- An informational article explains three ways heat moves: Conduction transfers heat through direct contact, like a metal spoon warming in hot soup. Convection transfers heat through the movement of fluids (liquids or gases), like warm air rising and cool air sinking. Radiation transfers heat through electromagnetic waves, like sunlight warming your skin.
Which conclusion best synthesizes the information and provides closure?
Answer: In conclusion, conduction, convection, and radiation are three different mechanisms for moving heat—through contact, fluid motion, and waves—explaining how energy travels in everyday examples.
The best conclusion pulls all three ideas together evenly: it names conduction, convection, and radiation and matches each to how it works—contact, fluid motion, and waves—then ties them to everyday examples. That is what synthesis and closure mean for this article. The choice about heat mattering in cooking, weather, and safety mentions the three methods but drifts into a safety takeaway the article never argues, so it summarizes the topic instead of synthesizing the explanation. The choice that ranks conduction as the most important adds a comparison the article never makes and spotlights one mechanism, so it fails to balance all three. The choice about engineers choosing materials names the three mechanisms but wanders into a new recommendation the passage never discussed, so it adds an outside idea rather than closing the one given. Only the option that names all three mechanisms with their matching descriptions and stops there truly synthesizes the information without adding claims the passage did not make.
- An explanation describes why the seasons change: Earth's axis is tilted. As Earth orbits the Sun, the tilt causes different parts of Earth to receive more direct sunlight and longer days at different times of year. When a hemisphere is tilted toward the Sun, it has warmer temperatures and longer days; when tilted away, it has cooler temperatures and shorter days.
Which conclusion best emphasizes the significance of this explanation without adding unrelated new information?
Answer: In conclusion, Earth's tilted axis and orbit explain predictable seasonal patterns, helping scientists and communities plan for changes in daylight, temperature, and growing seasons each year.
An effective conclusion for an explanation restates the significance of the ideas already presented without adding new or inaccurate information. The best answer highlights how Earth's tilted axis and orbit create predictable seasonal patterns people can plan around, which follows directly from the passage. The choice blaming Earth's changing distance from the Sun repeats a common misconception—the passage says the tilt, not distance, causes seasons. The choice recommending that people move to warmer places drifts into a personal opinion and lifestyle advice instead of summarizing the explanation. The choice claiming the Sun has a tilted position misstates the mechanism, since it is Earth's axis that is tilted, not the Sun. Only the first choice accurately emphasizes the importance of the explanation while staying faithful to its content.
- Read the explanation and select the best conclusion.
During the Industrial Revolution, many people moved from rural areas to cities to work in factories. This urbanization happened because factories offered steady wages, even though the work could be dangerous and the hours long. As cities grew quickly, housing often became crowded, and sanitation systems struggled to keep up. Over time, reform movements pushed for safer working conditions and improvements in public health.
Which conclusion best fits this informative explanation?
Answer: In conclusion, urbanization during the Industrial Revolution was driven by factory jobs and led to crowded cities, but it also sparked reforms that improved conditions over time.
A strong informative conclusion pulls together the main points of the explanation and shows how they connect, without arguing an opinion or drifting off topic. The best answer does this: it names the cause (factory jobs), the effect (crowded cities), and the long-term outcome (reforms), giving the passage balanced closure. The choice about greedy owners and workers who should have refused turns the explanation into an argument, pushing an opinion the passage never makes. The choice calling it an important period where 'many different changes happened' only restates that things changed—it summarizes nothing specific and provides no real closure. The choice about wages drawing people in starts well but then jumps to the automobile and airplane, introducing new topics the passage never discussed instead of concluding it. Only the first choice synthesizes the actual causes and effects, so it is the single best conclusion.
- Read the explanation and evaluate the conclusion.
A bill becomes a law through several steps. First, a member of Congress introduces the bill. Then it goes to a committee, where members review it, hold hearings, and may revise it. If the committee approves, the bill is debated and voted on by the full House or Senate. Both chambers must pass the same version, so differences are worked out in a conference committee. Finally, the president can sign the bill into law or veto it.
Proposed conclusion: "In conclusion, the lawmaking process includes multiple stages—introduction, committee work, votes in both chambers, and presidential action—designed to review and refine ideas before they become laws."
Does this conclusion effectively follow from and support the explanation?
Answer: Yes, because it pulls together the major steps described and provides clear closure without adding unrelated information.
The best answer works because it gathers the passage's main steps—introduction, committee review, votes in both chambers, and presidential action—and closes with the purpose of the process, all without slipping in new material. That is exactly what a strong informative conclusion does.
The choice claiming it focuses only on the committee stage misreads the conclusion, which clearly names the votes and the president too, so nothing important is left out. The choice saying it drifts into an opinion about fairness is wrong because the conclusion stays neutral and never judges the process. The choice praising it for repeating every detail applies the wrong standard: a good conclusion synthesizes the main ideas rather than listing every specific like hearings or conference committees, and this one summarizes instead of piling on details. Because only one option matches how the conclusion actually behaves, it is the single best answer.
- A report explains how a bill becomes a law in the U.S.: A bill is introduced in Congress, then it is reviewed in committees where changes can be made. If it passes votes in both the House and the Senate, it goes to the president. The president can sign it into law or veto it, and Congress can override a veto with enough votes.
A student wrote this conclusion: "In conclusion, the lawmaking process includes several steps and checks so that no single person or group can easily create a law on their own."
Does this conclusion follow from and support the information in the report?
Answer: Yes, because it pulls the separate steps together into one larger idea and gives the report a clear, purposeful ending.
The report describes a multi-step process built to limit any one group's power, so a strong conclusion should capture what that process means rather than just repeat it. The best answer does this: it gathers the separate steps into one larger idea and gives the report a purposeful ending, which is exactly what an effective informative conclusion does.
The choice claiming the conclusion retells each stage in order is wrong, because the sentence never lists the steps—it explains their purpose. The choice saying the conclusion shrinks everything down to committees misreads it, since the sentence refers broadly to "several steps" rather than one stage. The choice saying it names every stage again in sequence is also inaccurate, because the conclusion summarizes the overall design instead of walking back through the process. Only the answer that recognizes the conclusion synthesizing the steps into a single meaningful idea fits the report.
- Read the explanation and choose the best concluding paragraph.
Weathering breaks rock into smaller pieces, while erosion moves those pieces to new places. Physical weathering can happen when water freezes in cracks and expands, or when plant roots grow and push rocks apart. Chemical weathering changes the minerals in rock, such as when acidic rainwater reacts with limestone. Erosion then carries the broken material away by wind, moving water, ice, or gravity.
Which conclusion best synthesizes the information?
Answer: In conclusion, weathering and erosion work together: weathering breaks rock down physically or chemically, and erosion transports the pieces by wind, water, ice, or gravity, reshaping Earth's surface over time.
The best conclusion synthesizes the passage by showing how weathering and erosion connect: weathering breaks rock apart while erosion carries the pieces away, and together they reshape Earth's surface over time. This captures the relationship the passage builds, not just isolated facts.
The choice about volcanoes, earthquakes, and drifting continents stays on the general topic of Earth's forces but introduces ideas the passage never explained, so it doesn't summarize what you actually read. The choice that separately lists what causes physical weathering, chemical weathering, and erosion is accurate, but it only restates examples side by side without explaining how the two processes work together—so it lists instead of synthesizing. The choice about protecting roads and buildings shifts an informative explanation into a recommendation, adding a new argument the passage never made rather than closing the explanation. Only the first choice ties the ideas together into a true synthesis.
- A science explanation describes how vaccines help the immune system: A vaccine introduces a harmless piece or weakened form of a germ (or instructions to make a harmless piece). The immune system responds by making antibodies and creating memory cells. Later, if the real germ enters the body, those memory cells help the immune system respond faster and more effectively.
Which conclusion best fits this explanatory passage?
Answer: In conclusion, vaccines work by training the immune system to recognize a germ, so the body can respond more quickly later using antibodies and memory cells.
A strong conclusion for an explanatory passage sums up the main process the passage explained—here, how a vaccine trains the immune system so the body can respond faster if the real germ arrives later. The best answer does exactly this, restating the recognition process and naming antibodies and memory cells, without adding anything new.
The choice that says everyone should be required to get vaccines starts out summarizing correctly but then slides into an opinion, which does not fit an informative passage meant to explain, not persuade. The choice calling vaccines one of several tools doctors use, alongside medicines and tests, adds information the passage never mentioned and drifts away from the germ-recognition process. The choice claiming that training memory cells is 'only one small way' the body learns actually contradicts the passage, which presents this training as the central process vaccines rely on. Only the first choice accurately summarizes what the passage explained without adding opinions or new ideas.
- Read the explanation and identify the weakness in the conclusion.
A lunar eclipse happens when Earth moves between the sun and the moon. Earth's shadow falls on the moon, making it look dimmer and sometimes reddish because some sunlight bends through Earth's atmosphere. Lunar eclipses can only occur during a full moon, but they do not happen every month because the moon's orbit is tilted compared to Earth's orbit around the sun.
Conclusion: "In conclusion, the sun is a star made of hot gases, and it produces light through nuclear fusion."
What weakens this conclusion most?
Answer: It shifts to a different topic, the sun's structure, instead of synthesizing the explanation of lunar eclipses.
A strong informative conclusion should pull together the main points of the explanation and stay focused on the topic. The passage explains how lunar eclipses happen, so a good conclusion would summarize that idea. The best answer notices that the given conclusion drops the eclipse topic entirely and instead talks about the sun being a star that makes light through nuclear fusion. That switch to a completely new subject is the real weakness. The choice about restating every step in order is wrong because the conclusion doesn't repeat the eclipse process at all—it never mentions Earth's shadow or the moon. The choice about reviewing the main points with technical vocabulary is wrong for the same reason: the conclusion doesn't review the eclipse information, so wording is not the problem. The choice about drawing an implication without support is wrong because the conclusion isn't an unsupported inference about eclipses; it's an unrelated fact about the sun. When you write an informative conclusion, keep it tied to what you actually explained instead of jumping to a new topic.
- An explanatory paragraph describes the water cycle: Water evaporates from oceans and lakes into water vapor. As the vapor rises, it cools and condenses into clouds. When droplets in clouds become heavy enough, precipitation falls as rain or snow. Water then collects in rivers, lakes, and oceans, and the cycle repeats.
A student wrote this conclusion: "In conclusion, water is very important for living things."
What is the main weakness of this conclusion?
Answer: It is too vague and does not synthesize the specific stages of the water cycle that were explained.
This question tests identifying weaknesses in concluding statements for informative/explanatory writing, specifically when a conclusion fails to follow from the information presented or support it through synthesis. An effective informative conclusion should connect directly to the specific content explained, not drift into general statements. For instance, after explaining a scientific process with multiple stages, the conclusion should reference those specific stages. Choice C correctly identifies the main weakness: the conclusion is too vague and fails to synthesize the specific stages of the water cycle (evaporation, condensation, precipitation, collection) that were carefully explained. Choice A incorrectly suggests the conclusion has too much detail, Choice B wrongly claims it introduces desalination plants, and Choice D mischaracterizes it as argumentative. When writing conclusions for informative texts, ensure they specifically address the content you've explained rather than making broad, disconnected statements.
- Read the explanation and choose the best concluding sentence.
In a food web, energy enters an ecosystem when plants use sunlight to make sugars through photosynthesis. Herbivores get that energy by eating plants, and carnivores get it by eating herbivores. Decomposers like fungi and bacteria break down dead organisms and waste, returning nutrients to the soil so plants can grow again. Because energy is used for life processes and released as heat at each step, less usable energy is available higher up the food web.
Which conclusion best follows from this explanation?
Answer: These steps show how energy starts with the sun, moves through producers and consumers, and supports decomposers, even as less usable energy remains at higher levels.
The passage traces one process: energy enters through photosynthesis, passes from plants to herbivores to carnivores, gets recycled by decomposers, and shrinks at each step as heat is lost. A strong informative conclusion pulls those main ideas together without adding new claims. The choice about energy starting with the sun, moving through producers and consumers, supporting decomposers, and remaining less usable at higher levels does exactly that—it faithfully summarizes every stage.
The choice calling ecosystems complicated and saying living things depend on one another is too vague; it never mentions energy flow, which was the whole focus. The choice urging people to protect decomposers adds a persuasive recommendation the passage never made and wrongly singles out one group as most important. The choice claiming animals store all the energy they eat contradicts the passage, which states energy is used and released as heat at each step, so nothing keeps it all. Only one option restates the explanation without adding or changing anything.
- Read the explanation and choose the best revised conclusion.
When you cite sources in a research paper, you show where your information came from. Citations help readers find the original source to check facts or learn more. They also give credit to the author or organization that created the information. Without citations, a writer may accidentally plagiarize by presenting someone else's ideas as their own.
Weak conclusion: "In conclusion, citations are good."
Which revision best improves the conclusion?
Answer: In conclusion, citations help readers locate sources, support fact-checking, and give proper credit, which helps writers avoid plagiarism and strengthens research writing.
A strong informative conclusion pulls together the main points and reminds readers why the topic matters. The best revision does exactly that: it names the key purposes of citations—helping readers find sources, checking facts, and giving credit—and connects them to the bigger benefits of avoiding plagiarism and building trustworthy research. That synthesis gives the paper real closure.
The option about citations appearing in small print at the bottom or end of a paper focuses on where citations sit on the page, a formatting detail that ignores why citations actually matter. The option warning that a missing citation can lower a grade or cause trouble at school shifts to a fear-based, personal reason rather than summarizing the paper's ideas about the purpose of citations. The option listing MLA, APA, and Chicago rules about commas, italics, and capitalization drifts into narrow style details that were never the focus of the explanation. Each of these misses the job of a conclusion, which is to tie together the main ideas rather than add trivia or off-topic advice.
- A student writes an informative paragraph explaining how earthquakes happen: Stress builds where tectonic plates meet. Rocks can bend slightly, but when stress becomes too great, the rocks break and slip along a fault. This sudden movement releases energy as seismic waves that shake the ground.
Which conclusion best follows from and supports this explanation?
Answer: In conclusion, earthquakes happen when built-up stress at plate boundaries is released as rocks slip along faults, sending seismic waves that shake the ground.
A good conclusion for informative writing restates the paragraph's main ideas in the same order without adding, reversing, or shifting anything. The best choice sums up the exact process the paragraph described: stress builds at plate boundaries, rocks slip along faults, and seismic waves shake the ground. It follows from and supports the explanation without changing it. The choice about heat melting and weakening rock adds a brand-new cause the paragraph never mentioned—the passage says stress builds, not that heat weakens the rock. The choice saying seismic waves build up the stress reverses the order the paragraph gave; the waves are the result of the slipping, not its cause. The choice about engineers designing safer buildings shifts to earthquake safety, a new topic beyond what this informative paragraph set out to explain. Only the first choice synthesizes the key points accurately, so it is the single best conclusion.
- Read the explanation and identify the best concluding sentence.
When a computer sends information over the internet, the data is broken into smaller units called packets. Each packet includes part of the message plus addressing information so it can be routed to the right destination. Packets may travel along different paths through networks depending on traffic. At the destination, the packets are reassembled in the correct order to recreate the original message.
Which conclusion best synthesizes the process?
Answer: In conclusion, breaking data into packets allows networks to route pieces efficiently and then reassemble them, making reliable communication possible even when paths differ.
A strong conclusion for a technical explanation should synthesize how the described process achieves its purpose, connecting the steps to the overall outcome. The best answer explains that splitting data into packets enables efficient routing and reassembly, which is what makes reliable communication possible even when paths differ—it ties the mechanism to its goal. The choice about packets being small and the internet being fast is too vague; it praises the internet generally without capturing how the described process actually works. The choice claiming the system is too unpredictable to deliver messages misreads the passage, which explains that packets are reassembled in the correct order precisely so delivery is reliable. The choice that simply strings together "packets carry addressing information, packets travel different paths, packets get reassembled" only lists steps without explaining how they combine to achieve the outcome, so it never synthesizes. Only one option connects the process to its purpose, so it is the best conclusion.
- A student explains how a search engine can rank results: It scans and indexes web pages, then uses algorithms to decide which pages best match the words in a search. It may consider factors like how many other sites link to a page, how recent the information is, and whether the content seems trustworthy.
Which conclusion would be the best revision to provide strong closure and synthesis?
Answer: In conclusion, search engines rank results by combining indexed information with algorithms that judge relevance and quality, which is why different pages appear higher for the same search terms.
A strong closing for an explanation should pull the details together and show why the outcome happens, not just repeat information. The best answer does both: it restates that search engines combine indexing with algorithms judging relevance and quality, then connects that idea to the real result readers notice—why different pages appear higher for the same search terms. That is genuine synthesis.
The choice calling search engines a useful tool that millions rely on is true, but it drifts into a general truism and never ties the ranking factors together, so it gives no closure. The choice claiming money is the most important factor and that paying always places a page ahead introduces an idea the passage never supports—it contradicts the explanation instead of summarizing it. The choice that lists scanning, indexing, algorithms, links, recency, and trust just restates the steps in order without explaining how they work together to produce a result, so it summarizes without synthesizing. Only the best answer both restates the process and explains its effect, giving the paragraph a satisfying, unified ending.
- A student wrote an informative passage about how a tsunami forms: An underwater earthquake, landslide, or volcanic eruption can suddenly displace a large amount of water. This displacement creates waves that spread outward across the ocean. In deep water, the waves may be low but travel very fast. As they reach shallow coastal areas, the waves slow down, grow taller, and can cause flooding.
Two possible conclusions are shown below.
Conclusion 1: "In conclusion, tsunamis begin with a sudden displacement of ocean water and change as they travel, becoming especially dangerous when they grow taller near shore."
Conclusion 2: "In conclusion, tsunamis are the worst natural disaster, and everyone should live far away from the ocean."
Which conclusion better supports the informative passage and why?
Answer: Conclusion 1, because it pulls together the causes and the wave changes described and provides neutral, informative closure.
An informative conclusion should tie together the ideas the passage explained while keeping the same objective, explanatory tone. The best choice does exactly that: it gathers the causes (sudden water displacement) and the wave changes (growing taller near shore) into a neutral summary, so it fits the informative purpose. Saying the ending works because it adds a strong personal opinion is wrong, because informative writing summarizes information rather than trying to persuade readers with feelings. Claiming the second conclusion restates the process and tells readers what to do is also wrong, because that conclusion never actually names any steps of tsunami formation and shifts into advice. Finally, praising the first conclusion for adding safety advice beyond the passage's facts is wrong for two reasons: that conclusion does not add new advice, and a strong informative conclusion should wrap up what was explained, not introduce information the passage never covered. Only one option both identifies the neutral, summarizing conclusion and gives the correct reason for choosing it.
- A paragraph explains how a camera works: Light enters through the lens, which focuses it. The aperture controls how much light gets in, and the shutter controls how long the light hits the sensor. The sensor records the light as data, and the camera processes that data into an image.
Which conclusion is weakest because it introduces a new topic not explained in the paragraph?
Answer: In conclusion, photography changed history by influencing journalism, advertising, and social media trends across the world.
This question tests identifying when a concluding statement fails to follow from the information presented by introducing new topics not explained in the passage. An effective informative conclusion should only synthesize and reinforce the content actually covered, not expand into related but unexplained areas. For instance, a conclusion about a technical process should stick to that process, not jump to its historical or social impacts. Choice C is correctly identified as the weakest because it introduces entirely new topics—photography's influence on journalism, advertising, and social media—that were never mentioned in the technical explanation of camera mechanics. Choices A, B, and D all appropriately synthesize the camera's technical components and processes that were explained. When writing conclusions, resist the temptation to broaden the scope beyond what you've actually explained in the passage.
- Read the explanation and determine what a strong conclusion should include.
In a compare-and-contrast explanation, a writer shows how two subjects are alike and different. One method is the point-by-point structure, where the writer discusses the same feature (like cost, appearance, or effectiveness) for both subjects in each paragraph. Another method is the block structure, where the writer explains everything about one subject first and then everything about the other. Transition words such as "similarly," "however," and "on the other hand" help readers follow the comparisons.
What should an effective conclusion include?
Answer: A synthesis of the two organizational methods and why transitions help clarify similarities and differences, providing closure to the explanation.
A strong conclusion for an explanation should tie together the main ideas and remind readers of the overall purpose. Here, that means synthesizing how the two organizational methods work and how transitions help readers follow the similarities and differences, giving the explanation a sense of closure. The choice about introducing two new subjects for readers to practice on is wrong because a conclusion should wrap up what was already explained, not add new main content. The choice urging readers to pick one method and avoid the other is wrong because this is an informative explanation, not a persuasive argument, and the passage never claims one method is bad. The choice that simply restates the definitions and copies the transition words is wrong because a conclusion should do more than repeat information—it needs to explain how the ideas fit together, not just list terms. Only the synthesis option pulls the main points together and reinforces the purpose, which is exactly what a concluding statement should accomplish.
- Read the explanation and choose which conclusion is stronger.
A tsunami is a series of large ocean waves usually caused by sudden movement of the seafloor, such as during an undersea earthquake. The movement pushes a huge amount of water upward. In deep water, the waves may be fast but not very tall. As the waves reach shallow coastal water, they slow down and grow taller, which can cause severe flooding and damage.
Conclusion 1: "In conclusion, tsunamis form when sudden seafloor movement displaces water, creating waves that grow more dangerous as they slow and rise near shore."
Conclusion 2: "In conclusion, oceans are big, and waves can be scary."
Which conclusion better follows from the explanation and why?
Answer: Conclusion 1, because it restates what causes tsunamis and explains how their impact changes near shore, matching the information the explanation gives.
The stronger conclusion is the one that says tsunamis form when seafloor movement displaces water and that the waves grow more dangerous near shore. A good informative conclusion pulls the passage's main points together—here, both the cause (sudden seafloor movement) and the effect (waves that slow, rise, and flood the coast). So the choice praising Conclusion 1 for restating the cause and the changing impact is correct: it summarizes accurately and gives the reader closure.
The choice saying Conclusion 2 captures the main idea is wrong: "oceans are big, and waves can be scary" never mentions how tsunamis form or why they grow, so it does not summarize the explanation. The choice saying Conclusion 2 uses feeling words to restate how the waves form is also wrong—that conclusion contains no such details; it only expresses a vague feeling. The choice praising Conclusion 1 for adding facts about hurricanes and storm surge is wrong too, because a strong conclusion should summarize the explanation, not introduce new topics the passage never discussed.
- Read the explanation and choose the conclusion that best emphasizes the significance without introducing new topics.
The circulatory system moves blood through the body using the heart, blood vessels, and blood. Arteries carry blood away from the heart, and veins return blood to the heart. Capillaries are tiny vessels where oxygen and nutrients move into body cells and wastes like carbon dioxide move out. This continuous circulation helps keep cells supplied and removes materials they no longer need.
Which conclusion best fits?
Answer: In conclusion, the circulatory system's constant movement of blood delivers oxygen and nutrients and removes wastes, helping every cell function properly and keeping the body in balance.
A strong conclusion pulls together the paragraph's main points and highlights why the topic matters, without adding new ideas or giving advice. The best answer does exactly that: it restates that the circulatory system constantly delivers oxygen and nutrients and removes wastes, then emphasizes its significance—keeping every cell working and the body in balance. The choice about the heart's four chambers and different animals' hearts drifts into new information the passage never discussed, so it does not summarize what was explained. The choice about blood's red color also introduces a new detail (why blood is red) that the paragraph did not cover, so it fails to synthesize the main points. The choice urging everyone to exercise an hour a day shifts from explaining how the system works to giving prescriptive health advice, which is not the purpose of an informative conclusion. Only the first choice restates the system's overall function and its importance, providing proper closure.
- An informational passage compares three types of rocks: Igneous rocks form when melted rock cools and hardens, either underground or after lava erupts. Sedimentary rocks form when layers of sediment are pressed and cemented together over time. Metamorphic rocks form when existing rocks are changed by heat and pressure without fully melting.
Which conclusion best follows from the passage?
Answer: In conclusion, the three rock types are classified by how they form—cooling from melt, compacting sediments, or changing under heat and pressure—showing different pathways in the rock cycle.
A strong conclusion for this passage should pull the three rock types back together and remind readers of the main idea the passage actually developed. The best answer does this: it names the shared organizing principle—each rock type is grouped by how it forms—and links that idea to the broader rock cycle, exactly what the passage explained. The choice about rocks being found everywhere and used for buildings and gems drifts off-topic; it never addresses the passage's real point about how rocks form. The choice claiming metamorphic rocks are the most valuable and should be mined more adds a value judgment and a policy opinion the passage never makes, so it is not a fair summary of the information given. The choice about fossils forming only in igneous rock contradicts basic earth science—fossils actually form in sedimentary rock, not in lava—so it introduces a false claim instead of concluding what was written. Only one option restates the passage's shared classification idea without adding opinions or errors, which makes it the single best conclusion.
